8results about How to "Increase the pressing force" patented technology

This invention belongs to the field of fiber optic connector technology and discloses a high-return-loss fiber optic connector and its manufacturing method. The connector includes a mounting sleeve with an inner cylinder inside. An outer cylinder is threaded onto the inner cylinder. A positioning ferrule is located inside the inner cylinder, and an optical fiber cable is located inside the positioning ferrule. A spring is located on one side of the positioning ferrule. A mounting base is threaded onto the inside of the mounting sleeve. This invention uses a locking lever to simultaneously engage the inner cylinder and the mounting sleeve, achieving anti-loosening positioning of multiple components. When the anti-loosening mechanism is triggered, the rotating ring synchronously drives the clamping plate to clamp the optical fiber cable. External tensile force is directly borne by the clamping mechanism and is not transmitted to the positioning ferrule. The overall structure has strong linkage, effectively preventing axial movement and circumferential rotation of the positioning ferrule, ensuring the mating accuracy and return loss stability of the positioning ferrule, and significantly improving the connector's tensile and vibration resistance.

The present invention relates to a method for assembling a fuel injector (1) comprising a retainer (2) and a nozzle body (4), wherein a clamping shoulder (8) is formed at the transition from the rod (6) to the nozzle ring (5). The retainer (2) and the nozzle body (4) are clamped by a nozzle clamping nut (7). To assemble the fuel injector, the assembly tool (16) is pushed onto the rod (6) of the nozzle body (4) up to the clamping surface (4) of the nozzle body (4). Then, a preload (Fa) is applied to the nozzle body (4) by the assembly tool (16) such that the nozzle body (4) presses against the retainer (2) at least indirectly, wherein the assembly tool (16) clamps the rod (6) of the nozzle body (4). Subsequently, the nozzle clamping nut (7) is tightened until a defined clamping force is achieved on the retainer (2) of the nozzle body (4). The clamping tool (16) used has a hollow cylindrical receiving part (17) for the rod (6) of the nozzle body (4), wherein the wall of the cylindrical receiving part (17) is constructed such that the wall deforms inward when a longitudinal force is applied to the clamping tool (16).

The utility model relates to an oral cavity polishing and glaze-removing instrument which comprises a holding rod, a fastener and a polishing and glaze-removing cutter group, due to the arrangement of the fastening piece, a firm matching relation is formed between the dull polish piece and the holding rod, when the rotary pressing barrel is matched with the thread matching part in an overlapped mode, the contact degree of the inclined wall face and the pressing piece is gradually improved, and therefore the pressing force is improved; due to the arrangement of the positioning bulge and the positioning recess, the frosted sheet is more tightly matched with the holding rod, and a user can conveniently realize quick matching at a general degree, namely, position determination is better realized; the fastening pieces, the positioning protrusions and the positioning recesses are used in cooperation, so that firmness of the frosted sheet is improved, meanwhile, the frosted sheet is easy to disassemble and convenient to operate, and working efficiency is improved.

This utility model relates to the field of sealing gasket technology and discloses a sealing gasket structure for a drip-proof pipe flange. It includes an outer ring, a gasket body fixedly connected to the middle of the inner wall of the outer ring, a flange slidably connected to the middle of the inner wall of the gasket body, multiple fixing plates fixedly connected to the top of the outer ring, a rotating shaft I fixedly connected to the top of the inner wall of each fixing plate, pressure plates rotatably connected to the front and rear ends of the outer wall of the rotating shaft I, a rotating shaft II rotatably connected to the inner wall of the pressure plate, a moving plate fixedly connected to the middle of the outer wall of the rotating shaft II, and positioning mechanisms fixedly connected to the front and rear sides of the inner wall of the gasket body for positioning. In this utility model, the flange is first inserted into the gasket body, and the moving plate is pulled downwards, causing the pressure plate to press the flange downwards, thereby strengthening the clamping force, preventing water from dripping from the gasket, reducing resource waste, and improving practicality.

This utility model discloses a clothes drying rack controller and an electric clothes drying rack, belonging to the technical field of clothes drying racks. The clothes drying rack controller of this utility model includes a housing and a control circuit module disposed within the housing. One end of the housing extends to a wiring portion, which has an open upper power connection groove. A wire clamping seat is detachably disposed within the power connection groove, and a wire clamping channel for clamping the power cord is provided between the wire clamping seat and the wiring portion. This utility model also discloses an electric clothes drying rack. This utility model features an open upper power connection groove in the wiring portion of the controller to accommodate the power cord and the wire clamping seat. The wire clamping seat and the wiring portion clamp the power cord, improving the tensile strength of the clothes drying rack controller wiring position, ensuring the stability and reliability of the controller wiring, and improving electrical safety. Furthermore, the recessed wiring in the power connection groove results in a compact structure and convenient wiring.

The utility model provides a crosscutting line side shear intermediate compression roller device, including connecting subassembly, hydrocylinder, transmission subassembly and compression roller subassembly, connecting subassembly includes connecting portion and support portion, transmission subassembly includes rotating end, input end and output end, rotating end with connecting portion bottom end hinge joint, input end with hydrocylinder drive end hinge joint, and output end with connecting portion bottom end hinge joint. The compression roller assembly comprises a connecting block and at least two compression rollers arranged side by side, the connecting block is connected with the output end, the compression rollers are connected to the connecting block, and the bottoms of the compression rollers are used for pressing the steel plate. The hydraulic cylinder is matched with the transmission assembly to drive the compression roller assembly to achieve the pressing effect, acting force is increased, the stability of a steel plate during edge cutting is improved, the edge cutting quality is improved, different end portions of the transmission assembly can change the length of a force arm acting on a fulcrum, and therefore the direct acting force of the hydraulic cylinder is improved, and the situation that the steel plate is crushed due to the too large acting force is avoided. And meanwhile, the compression roller assembly adopts a plurality of compression rollers, so that the contact area can be increased, and the compression effect is further improved.

The utility model discloses a lower mould structure for compression moulding with high cooling efficiency, including cavity mounting sleeve, lower mould gasket, lower mould cooling cavity, the lower mould cooling cavity includes cooling outer cavity, the cooling inner cavity is sleeved in cooling outer cavity, wherein, the cooling outer cavity is clamped between the upper end of cavity mounting sleeve and lower mould gasket and the lateral wall of this cooling outer cavity is provided with a plurality of outer cavity passageways, the lower surface of cooling inner cavity is provided with a plurality of horizontal channels and the outside of this cooling inner cavity is provided with a plurality of longitudinal channels, one end of horizontal channel is cooling liquid inlet and the other end of this horizontal channel is communicated with longitudinal channel, outer cavity passageway in proper order, be provided with upper die pressure surface on cooling outer cavity, when closing mould, the upper die pressure surface is in axial direction and is in contact with upper die. The utility model can consider rustproof performance and strength and heat treatment process performance when making, can also effectively guarantee cooling liquid flow along the specified route to improve the cooling efficiency.

The utility model is applicable to the field of skillful fixing frames, and provides a plug-in type skillful fixing frame, which comprises a base, a plug-in type skillful fixing frame, a plug-in type fixing frame, a plug-in type fixing frame and a plug-in type fixing frame, and is characterized in that the base comprises four bottom beams which are connected and fixed through four connecting seats; the cross beams are inserted and positioned through inserting heads arranged at the ends and first inserting grooves formed in the side faces of the bottom beams; the four supporting legs are inserted and positioned through the arranged first inserting columns and the inserting cavities formed in the connecting bases; and the stand column comprises four column rods, and the column rods are inserted and positioned in the inserting cavity through the second inserting columns. The skillful fixing frame is installed in an inserting mode, compared with a traditional integrally-welded skillful fixing frame, the skillful fixing frame is more flexible to use, in addition, based on the inserting and splicing structure of the skillful fixing frame, skillful fixing frames of other sizes can be obtained by replacing the lengths of a bottom beam, a cross beam and a column rod very conveniently, and the skillful fixing frame is more convenient to use. And on the basis of the shared part connecting base, the supporting legs and the second inserting columns, the purchase cost is greatly reduced.